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MICOM-3F/3T/3R HF-SSB Owner’s Guide
100
Using the Vocoder
Introduction
A vocoder option can be ordered for the MICOM-3. The vocoder provides voice privacy at good
voice quality, using digital signal processing techniques.
The vocoder supports the following protection modes:
• Privacy (PVT) mode, compatible with the VP-116 Mini Voice Privacy Unit. The vocoder can store
up to 8 private keys for use in this mode.
• Digital (DIG) encryption mode.
You can select the desired protection mode, or switch to the clear (CLR) mode. To support protected
communication, the radio bandwidth is automatically switched to 3.3K.
The vocoder can be used in all the modes (Channel, Frequency and ALE).
Note
When using the DIG mode with ALE, the radio scans in the Clear mode. When a
vocoder call is detected, the radio automatically switches to the protected DIG
mode after the link is established, and returns to scan in the Clear mode after the
link is disconnected.
Using the Vocoder
When operating the radio with the vocoder in the Channel, Frequency or ALE mode, you can choose
between the CLR, DIG, and PVT (private) modes:
• PVT activates the automatic voice privacy functions
• DIG activates the vocoder digital encryption function
• CLR reverts to regular radio activity.
Notes
1. There are eight preprogrammed PVT keys, PVT1 to PVT8, and one digital
encryption key (DIG). Program the key to be used as described in the
Programming the Vocoder section starting on page 102. The currently-used
key number appears on the screen.
2. In the PVT and DIG modes, the vocoder controls whether you hear or not the
received signals, and therefore the squelch option (SQ (F3)) is not displayed.
The Squelch option (F3) appears only in the Clear (CLR) mode.
3. When the PTT is activated, a hold-off tone sounds. Wait for the hold-off tone
to end before talking.
- Owner’s Guide 1
- MICOM-3F/3T/3R 3
- HF-SSB Transceivers 3
- Table of Contents 5
- Acronyms 7
- Performance Specifications 11
- Warnings, Cautions and Notes 12
- General Safety Precautions 12
- Caution 13
- Facilities 16
- Vehicles 16
- Driver Safety 17
- Operational Warnings 17
- Intentionally Left Blank 18
- Transmitter Features 20
- Receiver Features 20
- Frequency Sources 20
- Power Source 21
- CW Keying Operation 21
- Programmable Features 21
- MICOM-3F Front Panel 22
- MICOM-3T Front Panel 23
- MICOM-3R Front Panel 24
- Rear Panel (All Models) 25
- LCD Display Functions 26
- RF Level Indications 27
- Audible Indications 27
- General Procedures 28
- Function Keys 29
- Scroll (MORE) Key 29
- Up/Down Scroll Keys 29
- Toggle Mode 29
- Alphanumeric Edit Mode 30
- Numeric Edit Mode 30
- View Mode 30
- Message Attached Alert 30
- (MICOM-3F/3R only) 31
- The Menu 32
- What you can Select 33
- Basic Operating Instructions 34
- Reflected 35
- Using the Channel Mode 36
- Channel Mode Options 37
- Choosing a New Channel 39
- Using the Frequency Mode 40
- 14,000.00 41
- F 15,000.00 41
- VFO Operation 43
- F 14,000.00 44
- F 15,_00.54 44
- Frequency Mode Options 45
- Storing Frequencies 47
- Using the Scan Mode 48
- Using the BIT Mode 49
- Locking the Radio 50
- Changing the Password 51
- Scanning 52
- Sounding 52
- Sounding Cycle Time 53
- LQA Memory 54
- Bidirectional Handshake 54
- Selective Calling 55
- ALE Addressing Method 55
- Address and Call Types 55
- Group Addresses 57
- AllCall Addresses 58
- AnyCalls 58
- Using the MultiNet Feature 59
- Messages 60
- Using the Caller Stack 60
- Quick Call 60
- Entering the ALE Mode 61
- ALE Mode Options 62
- Receiving Calls in ALE Mode 63
- ➤ Receiving a net call: 64
- ➤ Receiving an AllCall: 64
- ➤ Receiving an AnyCall: 64
- Link State 66
- Disconnecting Calls 71
- CH 3 30% 74
- Using Autodial 76
- Sending Messages 77
- Other Types of Calls 79
- Transmitting AIICalls 80
- Transmitting Net Calls 83
- Transmitting Group Calls 84
- END CALLING 85
- Transmitting AnyCalls 86
- ➤ To transmit an AnyCall: 87
- Transmitting Wildcard Calls 89
- Transmitting a Self Call 91
- Using the Inlink Function 95
- Using the Programming Mode 96
- Programming Channels 100
- Selecting Radio Parameters 102
- Setting Radio Options 104
- ALE Programming 105
- Programming Nets 106
- Default Values 107
- Setting the Net Options 108
- Directory Parameters 108
- AMD Message Configuration 109
- ALE Options Configuration 109
- Auto Dial Parameters 111
- Storing ALE parameters 111
- PROGRAMMING 112
- Introduction 113
- Using the VP-116 Unit 114
- Using the Vocoder 118
- Programming the Vocoder 120
- Erasing the Stored Keys 121
- GPS Receiver Functions 122
- GPS Antenna 123
- Operating the GPS Receiver 124
- First-Time Operation 125
- Operating Instructions 126
- What to do if … 127
- Installation 128
- Green (Output 1 - max. 5A) 129
- Black (Ground) 129
- Red (Output 2 - max. 25A) 129
- 5A GND 25A 129
- 5A - 25A 129
- MICOM-3R Installation 130
- MICOM-3F Installation 131
- MICOM-3T Installation 131
- Installation Procedures 133
- Throughly 134
- Clean this Area 134
- Floor Surface 134
- Microphone Clip 135
- Important 136
- MICOM-3T Final Connections 137
- Operational Checks 137
- Connectors 138
- Antenna Connector J2 139
- Accessories Connector J5 139
- DC Power Connector 141
- Vehicular Noise Reduction 141
- Maintenance 142
- Using BIT 143
- Troubleshooting 145
- Service 147
- Appendix A 148
- 3 5-50 Watt HF-SSB 148
- Backpack Transceiver 148
- Purpose and Use 149
- Equipment Description 149
- Unpacking and Inspection 152
- Backpack Carrying Harness 153
- Warning 155
- Installation of Whip Antenna 157
- List of Procedures 162
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